Function traverseFileTreePromise

public/js/upload.js:439–469

(item, path = "")

----------------------------------------------------- */
// Recursively traverse a dropped folder.
function traverseFileTreePromise(item, path = "") {
  return new Promise((resolve) => {
    if (item.isFile) {
      item.file(file => {
        // Store relative path for folder uploads.
        Object.defineProperty(file, 'customRelativePath', {
          value: path + file.name,
          writable: true,
          configurable: true
        });
        Object.defineProperty(file, 'relativePath', {
          value: path + file.name,
          writable: true,
          configurable: true
        });
        resolve([file]);
      });
    } else if (item.isDirectory) {
      const dirReader = item.createReader();
      dirReader.readEntries(entries => {
        const promises = [];
        for (let i = 0; i < entries.length; i++) {
          promises.push(traverseFileTreePromise(entries[i], path + item.name + "/"));
        }
        Promise.all(promises).then(results => resolve(results.flat()));
      });
    } else {
      resolve([]);
    }
  });
}

// --- Lazy loader for Resumable.js (no CSP inline, cached, safe) ---
const RESUMABLE_SRC = withBase('/vendor/resumable/1.1.0/resumable.min.js?v={{APP_QVER}}');